diff --git a/machines.cabal b/machines.cabal
--- a/machines.cabal
+++ b/machines.cabal
@@ -1,6 +1,6 @@
 name:          machines
 category:      Control, Enumerator
-version:       0.2.1.1
+version:       0.2.1.2
 license:       BSD3
 cabal-version: >= 1.10
 license-file:  LICENSE
@@ -34,7 +34,7 @@
     containers   >= 0.3   && < 0.6,
     free         >= 3.1.1 && < 3.3,
     pointed      == 3.0.*,
-    profunctors  == 3.0.*,
+    profunctors  >= 3.0   && < 3.2,
     semigroups   >= 0.8.3 && < 0.9,
     transformers == 0.3.*,
     mtl          >= 2.1.1 && < 2.2